Aimy is a small but well-thought-out gadget, particularly handy for anyone who likes working on their own bike. Removing the stem and handlebars often leaves you wishing you had more than two hands to do everything you need to while keeping the fork from sliding down through the head tube. Rather than simply sliding over the steerer tube like an ordinary headset spacer, Aimy clamps onto it, preventing the fork from dropping out once you've removed the stem. Handy, isn't it? Otherwise, Aimy works as a regular headset spacer, measuring 8 mm high and weighing 8 g.

You can also use Aimy as a reference to realign your handlebars perfectly straight if your stem gets knocked out of alignment. Aimy is clamped in place and won't move, even if your stem does. As long as you've previously aligned Aimy's clamp slot with the one on your stem, you'll have a simple but effective guide to the straight-ahead handlebar position.

Weight: 8 g